Improvement in gang-ploughs



GEORGE ,nonne or sTooKToN,oALiFoRNIA.

lLetters Patent No. 75,871, dated March 24, 1868.

IMPROVEMENT IN GANG-PLOUGHS.

@te Straub referat tu tu tipa @titers @that mit mating tart tt tlgestnn.

TO ALL WHOM IT MAY GONOERN:

Be it known that I, GEORGE J. DAHL, of Stockton, in the county of San Joaquin, and State of California, have invented an Improved Gang-Plough; and I do hereby declare that the following is a full, clear, and exact description of theconstruction and operation of the same, reference being had to the accompanying drawings, and letters of reference marked thereon, making apart of this specification, of which- Figure I is a perspective view. l

AFigure 2, a side view of thev land-side. y

Figure .3, a side view of the mould-board also th'e method of attachment of the movable land-side.

Figure 4 is a plan viewy of the head-piece.

- Figure 5 is a view ofthe tenon-ho'oks used to attach the land-side. I

Figure 6 is a rear view of the standard, showing the attachment of bothland-side and mould-board; also the brace k and bolt k.

Figure 7 isa perspective view-of the caster-wheeland scraper. This invention, which'I denominate The Samson, consists of a frame of peculiar construction, to which arejattaehed,` in any suitable manner, standards of novel shape, said standards bearing mould-boards and lndsides, the whole forming an eeient gang-plough, of great strength, as well as cb'eapness of construction and i i ease of manipulation, as will hereinafter more fully appear.

To enable others skilled in th'art tomake and use my invention, I'Will proceed to describe its construction and operation.

' A represents the frame, consisting of a single plank, B, of a length and thickness suited to the number of ploughs it may be desired to use, and to the angle at which it is to be drawn. The plank should be wide enough to cover -and'jut over the tops of the. standards attached to it. a a, dto., represent Wooden bars, of varying lengths, suitably fastened to the plank B, and extending forward, in the line of the draught, at any desired angle with said plank. b represents a cross-bar, connecting said bars a in front. The frame A isprovided with two adjustable wheels, c, for regulating the depth at which the plo'ughs are .to run, one placed at tho right-handlfrontA corner, and the other at the rear, while at the left-hand front corner is n. caster-wheel, d, by means of which the frame may be turned with ease whenever desired. Arscraper, e, is connected with the caster-wheel d, for the purpose of keeping it always clear of dirt.

D represents the standard used in this plough, the same having two sde's d d'7', connected at an angle of from twenty-two to thirty degrees. This angle; I have found, permits the plough to pass with great ease through the soil, while, at the'same time, but little strain is brought upon the mould-board attached to one side of the i standard, only sui'lcient, ln fact, to invert the cutting of earth which has been gently lifted by the forward part of said mould-board.

The standard is made ofcast iron, and is provided wit-.ha head-piece, k, nearly of the shape of an isoseeles triangle, the line drawn from the apex of which, perpendicular to the base, being one-half the length of said base.

A bolt passes through a hole at each corner of the head-piece,I fastening thesame to the plank B of the frame,

the longest side oilsaid .head-piece `being in the direction of the line of draught, by which arrangement: the strain of the draught is most irmly resisted, and great lateral strength is enabled to he vgiven to the land-side of the standard. The-head-piece is cast with an open space, z', at its centre, thus lightening without Wea-ken ing it, and at the same time making room for the passage of abolt, 1c, from the brace k', placed between the two sides ofthe standard, for the purpose of strengthening it, up through the plank B, said bolt being intended to aid in the attachment of the standard to the plank, and being required only in very stiff adobe lands, where immense strength of fastening is necessary. Y t

The mould-board side d of the standard extends at the top'- from the front lug to the side lug of. the head piece, and from the top, by two slight curves, one runninginto the otherto the mould-board bed, the heel extending back suiiiciently far'for the requirements of the mouldfboard. This construction' adds greatly to the strength of the standard, and furnishes a strong. and suiicient 'support for the mould-board when such support'is most required. Y f

The land-side d of the standard vis provided at its bottom with an offset, m, for the reception of an adjustable land-side, on', the latter being furnished with tenon-hooks u n, which enter thc orili'cc n n in the olsct m. The adjustable land-side is then drawn back to the full extent of the orictgand is then held in place by the mouldboard, which closely fits its curved end. The land-side muy be readilyrernoved from the standard by Y simply detaching` the mould-board.

In connection with the plough, I generally use the reversible steel mould-board, having two sharp edges; but I malte no claim to any particular form of mould-board.

Having thus fully described my invention,v what I claim as new, and desire to secure by Letters Patent, is"

l. A plough-standard, constructed substantially as shown and described.

2. The orifices u n of the o'set m, as and forvthc purpose set forth.

3. The tenon'hooks n n of the adjustable land-side m', as and for the purpose set forth.

4. The head-piece h of the standard D, constructed as described, and made with the central opening z', as and for the purpose set forth.

5. The adjustable 1andside m', in combination with the standard D, arranged .in the manner described,

6. The scraper e, in combination with the caster-wheel d, as and for the purpose set forth.

'l'. A series of ploughs, constructed and operating as set fortl1,in connection with a. frame of tlm kind described.

GEORGE J. DAHL.

Witnesses:

` W. G. GEnsToN,

J. B. WEBSTER. 

